Located near the foothills of the White Tank Mountains, this plant provides potable water to communities in the west-central portion of Maricopa County. The expansion project consisted of adding a new 38 MG raw water reservoir, additional raw water and finished water vertical turbine pumps, 33 MGD UV disinfection units, an additional DAF basin, addition of an enhanced treatment process, two additional solar drying beds, two gravity media filters, wastewater clarifier and chemical feed upgrades, and an electrical and control building. The plant's treatment process increased its total firm capacity from 13.4 MGD to 26.7 MGD and increased its total capacity from 20 MGD to 30 MGD.